git.scottworley.com Git - pluta-lesnura/blob - src/main.rs

   1 use clap::{Parser, Subcommand, ValueEnum};
   2 use pluta_lesnura::{momentum_player, play, random_player, Game};
   3
   4 #[derive(Parser)]
   5 #[command(author, version, about, long_about = None, arg_required_else_help = true)]
   6 struct Cli {
   7     #[command(subcommand)]
   8     command: Option<Commands>,
   9 }
  10
  11 #[derive(Clone, Debug, ValueEnum)]
  12 enum Strategy {
  13     Random,
  14     Momentum,
  15 }
  16
  17 #[derive(Subcommand)]
  18 enum Commands {
  19     /// Runs simulations
  20     Sim {
  21         /// For momentum play, draw how often?  0-1
  22         #[arg(short = 'p', long, default_value_t = 0.5)]
  23         draw_chance: f64,
  24         /// How many games?
  25         #[arg(short = 'g', long, default_value_t = 1)]
  26         num_games: usize,
  27         /// How many players?
  28         #[arg(short = 'p', long)]
  29         num_players: usize,
  30         /// What strategy should players use?
  31         #[arg(short = 's', long, value_enum)]
  32         strategy: Strategy,
  33     },
  34 }
  35
  36 fn main() -> Result<(), &'static str> {
  37     let cli = Cli::parse();
  38
  39     match &cli.command {
  40         Some(Commands::Sim {
  41             draw_chance,
  42             num_games,
  43             num_players,
  44             strategy,
  45         }) => {
  46             let player = || match strategy {
  47                 Strategy::Random => random_player(*draw_chance),
  48                 Strategy::Momentum => momentum_player(*draw_chance),
  49             };
  50             for _ in 0..*num_games {
  51                 let players: Vec<_> = std::iter::from_fn(|| Some(player()))
  52                     .take(*num_players)
  53                     .collect();
  54                 let mut game = Game::default();
  55                 for _ in 0..*num_players {
  56                     game.add_player();
  57                 }
  58                 let result = play(game, players)?;
  59                 println!("Result: {result:?}");
  60             }
  61             Ok(())
  62         }
  63         None => unreachable!(),
  64     }
  65 }